Results 71 to 80 of about 436,973 (328)

Differential Compartmentalization of Enzymatic Reactions for Lactate Signaling Across Protocells

Advanced Functional Materials, EarlyView.
Two populations of protocells consisting of giant unilamellar vesicles containing active species and distinct artificial organelles are competent of collective behavior by mimicking production, intercellular communication, and detection of the bioinspired signal molecule lactate. Enzymatic cascade reactions within artificial organelles demonstrate that
Arianna Balestri, Xinan Huang, Emanuel Lörtscher, Cora‐Ann Schoenenberger, Cornelia G. Palivan   +4 more
wiley   +1 more source

Exploring the interplay between running exercises, microbial diversity, and tryptophan metabolism along the microbiota-gut-brain axis

Frontiers in Microbiology
The emergent recognition of the gut-brain axis connection has shed light on the role of the microbiota in modulating the gut-brain axis’s functions. Several microbial metabolites, such as serotonin, kynurenine, tryptamine, indole, and their derivatives ...
Alejandra Vazquez-Medina, Nicole Rodriguez-Trujillo, Kiara Ayuso-Rodriguez, Fabiana Marini-Martinez, Roberto Angeli-Morales, Gerardo Caussade-Silvestrini, Filipa Godoy-Vitorino, Nataliya Chorna   +7 more
doaj   +1 more source

Intestinal microbiota-derived tryptophan metabolites are predictive of Ah receptor activity

Gut Microbes, 2020
Commensal microbiota-dependent tryptophan catabolism within the gastrointestinal tract is known to exert profound effects upon host physiology, including the maintenance of epithelial barrier and immune function.
Fangcong Dong, Fuhua Hao, Iain A. Murray, Philip B. Smith, Imhoi Koo, Alyssa M. Tindall, Penny M. Kris-Etherton, Krishne Gowda, Shantu G. Amin, Andrew D. Patterson, Gary H. Perdew   +10 more
doaj   +1 more source

ROTATIONAL SPECTRUM OF TRYPTOPHAN [PDF]

Proceedings of the 69th International Symposium on Molecular Spectroscopy, 2014
The rotational spectrum of the natural amino acid tryptophan has been observed for the first time using a combination of laser ablation, molecular beams, and Fourier transform microwave spectroscopy. Independent analysis of the rotational spectra of individual conformers has conducted to a definitive identification of two different conformers of ...
Sanz, Maria Eugenia, Cabezas, Carlos, Mata, Santiago, Alonso, Josè L   +3 more
openaire   +5 more sources

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Relationship between metabolites of peripheral tryptophan-kynurenine metabolic pathway and clinical symptoms in patients with schizophrenia

Sichuan jingshen weisheng
BackgroundSchizophrenia is a common severe mental disorder with complex pathogenesis. There are few studies on the correlation between kynurenine metabolites in peripheral serum and urine in schizophrenia.ObjectiveTo investigate the concentration of ...
Wu Yue, Xu Yan, Huang Xin, Wang Dake, Huang Chenyun, Liang Sugai   +5 more
doaj   +1 more source

Posttranslational isoprenylation of tryptophan in bacteria

Beilstein Journal of Organic Chemistry, 2017
Posttranslational isoprenylation is generally recognized as a universal modification of the cysteine residues in peptides and the thiol groups of proteins in eukaryotes.
Masahiro Okada, Tomotoshi Sugita, Ikuro Abe   +2 more
doaj   +1 more source

Effect of Tryptophan Analogs on Derepression of the \u3cem\u3eEscherichia coli\u3c/em\u3e Tryptophan Operon by Indole-3-Propionic Acid [PDF]

, 1978
The abilities of 14 tryptophan analogs to repress the tryptophan (trp) operon have been studied in Escherichia coli cells derepressed by incubation with 0.25 mM indole-3-propionic acid (IPA).
Fredricks, Walter W., Pauley, Robert J., Smith, Oliver H.   +2 more
core   +1 more source

On the prevalence of bridged macrocyclic pyrroloindolines formed in regiodivergent alkylations of tryptophan. [PDF]

, 2016
A Friedel-Crafts alkylation is described that efficiently transforms tryptophan-containing peptides into macrocycles of varying ring connectivity. Factors are surveyed that influence the distribution of regioisomers, with a focus on indole C3-alkylations
Curtin, Brice H, Harran, Patrick G, Houk, KN, Lawson, Kenneth V, Rose, Tristin E, Simon, Adam   +5 more
core   +1 more source

Catalytic TiO2 with Self‐Assembled Monolayer for Highly Sensitive, Selective, and Non‐Invasive Monitoring of Sweat L‐Cysteine

Advanced Functional Materials, EarlyView.
A self‐assembled monolayer of 3‐mercaptopropyltrimethoxysilane (MPTS) molecular receptor and titanium oxide‐modified carbon cloth (MPTS/TiO2/CC) was synthesized for the specific detection of sweat L‐cysteine, which is associated with the precision neutrition, cardiovascular system and neuro system.
Xiangjie Chen, Jia Zhu, Jian Shao, Taisong Pan, Guang Yao, Min Gao, Jian Yang, Rui Zhao, Libin Huang, Tao Li, Huanyu Cheng, Yuan Lin   +11 more
wiley   +1 more source